Final answer:
Airplanes, trucks, and crates are considered capital resources for UPS, used to provide their transportation and delivery services.
Step-by-step explanation:
For UPS, airplanes, trucks, and crates are capital resources. These items are considered essential inputs or factors of production that are used to provide goods and services. Capital resources are the tools, equipment, and buildings that are used to produce goods and deliver services, such as the transportation and delivery services provided by UPS. Energy sources like petroleum are often used to deliver kinetic energy to power these modes of transportation.